1. Support rod kit for 3D printer with aluminum profile structure. 2. Used to enhance the stability of the Z axis and improve the printing effect. 3. Compatible with Creality Ender-3 / Ender-3S / Ender-3 Pro / Ender-3 v2 or other similar structure 3d printers, the print size is 220x220x250mm. 4. The length of a single tie rod is 36.5cm, which is convenient to install and has a more stable structure. 5. Made of high-quality aluminum alloy material, strong and durable. 6. Product size: 56x63x471mm